[ə¦zäk·sē′ben‚zēn] (organic chemistry) C6H5NO=N‒C6H5 A compound existing in cis and trans forms; the cis form melts at 87°C; the trans form comprises yellow crystals, melting at 36°C, insoluble in water, soluble in ethanol.
Azoxybenzene
C6H5N = N(O)C6H5, the simplest azoxy compound; pale yellow crystals, melting point of 36°C. It was discovered by N. N. Zinin in 1845.